Coating with luster: Luster is an organometallic compound. Luster is applied to the substrate by painting, spraying or dipping. After loading, the luster is fired at temperatures of 500 - 650 ° C. Firing temperature depends on the kind of luster.Czech glass pressed dagger beads are pressed glass beads in a shape of a spear. They may be called dagger beads, but we prefer to think of them as flower petals or dragonfly wings.